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Hey I have a question about this exercise. I do not get an error when I run the code as is:
I’ve highlighted at the bottom the part that confuses me. I should have to enter another instance variable correct? i.e. ‘boolean isConfirmed = false;’
But if I don’t include that, I get no error but the incorrect answer, right?
public class Reservation {
int guestCount;
int restaurantCapacity;
boolean isRestaurantOpen;
boolean isConfirmed;
public Reservation(int count, int capacity, boolean open) {
if (count < 1 || count > 8) {
System.out.println(“Invalid reservation!”);
}
guestCount = count;
restaurantCapacity = capacity;
isRestaurantOpen = open;
}
Hello Tommy, the instructions were not clear for me as well, you don’t need to reassign any values to isConfirmed all they wanted is for you to create if else, without “!” operator. That’s what I’ve done
example:
if(isConfirmed == true) // just a simple if condition like on a previous exercise, try it out!
{
// do something
}
else
{
// do something in case if the first statement didn't get implemented
}
Please paste your full code using the </> button to improve readability and preserve formatting. Additionally, please indicate what error you received.
If formatted properly, your code should work (however, note that there is a typo in your second print statement, where the is spelled teh).
code:
ublic void informUser() {
// Write conditional here
if(!isConfirmed){
System.out.println(“Unable to confrim reservation, please contact restaurant”);
} else {
System.out.println(“Please enjoy your meal”);
}
}
output:
Reservation confirmed
Please enjoy your meal
Reservation denied
Unable to confrim reservation, please contact restaurant
error:
Does your code print ‘Unable to confirm reservation, please contact restaurant.’ if the reservation instance has a field of isConfirmed set to true?
I have tried putting isConfirmed = true before the if then else statement but the logic is wrong so I tried to put it after the if then else and the output was still correct. I just dont know why it gives me that error
Ok, so this is a bit “out there”, but when they present this example:
boolean doorIsLocked = false;
if (!doorIsLocked) {
System.out.println("Come on in!");
}
Explaining that:
This code snippet will print Come on in! because the false value is flipped to true by ! .
Sure, I understand it.
But wouldn’t it be more accurate to say that (!doorIsLocked) is pretty much the same as writing (doorIsLocked == false)? Then, since the boolean attributed to isDoorLocked actually holds the false value, the print command executes.
I tested it, it works and it seems a lot easier to think of it this way…
after all, if the door is NOT locked, you can come on in.
AT one point of your code, you have an extra } or missing an }. Please format your code properly so using corresponding code-blocks so we can help you better!
I’ve not touched anything but what I was supposed to. I’ve tried adding and deleting } and cannot figure it out. EDIT: I figured it out. It was a spacing issue? So weird.
Not sure if i’m understand the theory, or the check is wrong… when I run this through the java debugger in vscodium it seem correct doing exactly what I expect, but when I submit it as an answer it says it’s wrong. From what I’m reading:
Reservation partyOfThree = new Reservation(3, 12, true); inputs that there are 3 guest, and 12 open spaces and the true indicates the restaurant is open. Which means the reservation should be available to be booked.
While Reservation partyOfFour = new Reservation(4, 3, true); inputs that there are 4 guests and 3 open spaces and the true indicates the restaurant is open. With this information the reservation should NOT be accepted, when I step this through the debugger this is EXACTLY what happens but for some reason when I submit it in CodeAcademy online code checker it doesn’t accept the answer. Can someone PLEASE make clear what I’m doing wrong here? I’ve pasted my entire code in the bottom.
public class Reservation {
int guestCount;
int restaurantCapacity;
boolean isRestaurantOpen;
boolean isConfirmed;
public Reservation(int count, int capacity, boolean open) {
if (count < 1 || count > 8) {
System.out.println("Invalid reservation!");
}
guestCount = count;
restaurantCapacity = capacity;
isRestaurantOpen = open;
}
public void confirmReservation() {
if (restaurantCapacity >= guestCount && isRestaurantOpen) {
System.out.println("Reservation confirmed");
isConfirmed = true;
} else {
System.out.println("Reservation denied");
isConfirmed = false;
}
}
public void informUser() {
// Write conditional here
if (!isConfirmed) {
System.out.println("Unable to confirm reservation, please contact resturant.");
} else {
System.out.println("Please enjoy your meal!");
}
}
public static void main(String[] args) {
Reservation partyOfThree = new Reservation(3, 12, true);
Reservation partyOfFour = new Reservation(4, 3, true);
partyOfThree.confirmReservation();
partyOfThree.informUser();
partyOfFour.confirmReservation();
partyOfFour.informUser();
}
}
) below.
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